[Damian is only slightly behind Guren to the side. When he looks up, he tries to search what he can see of Guren's face, as if attempting to gauge whether all this is baloney.]

You're not that old. You talk as if this catastrophe occurred recently, during your lifetime. If it was cataclysmic enough to destroy much of the population, what happened exactly? How did you survive? Are the vampires and the catastrophe related?